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1、_._—,—..——......__—.——-.——--.—--F(+w7~@9w7)IndianStandardWROUGHTALUMINIUMANDALUMINIUMALLOYSHEETANDSTRIPFORGENERALENGINEERINGPURPOSES—SPECIFICATION(FourthRevision)ICS77.150.10@BIS2008BUREAUOFINDIANSTANDARDSMANAKBHAVAN,9BAEIADURSHAHZAFARMARGNEWDELHI110002September2008PriceGroup6Ligh
2、tMetalsandTheirAlloysSectionalCommittee,MTD7FOREWORDThisIndianStandard(FourthRevision)wasadoptedbytheBureauofIndianStandards,afterthedraftfinalizedbytheLightMetalsandTheirAlloysSectionalCommitteehadbeenapprovedbytheMetallurgicalEngineeringDivisionCouncil.Thisstandardwasfirstpublis
3、hedin1956andrevisedin1965,1974and1986.Whilereviewingthisstandard,inthelightofexperiencegainedduringtheseyears,theCommitteedecidedtoreviseittobringinlinewiththepresentpracticesbeingfollowedbytheIndianindustry.Inthepresentrevision,followingmodificationshavebeenmade:a)TennewGrades190
4、02,24530,26388,31200,31500B,52300,52300B,65028,74538and76528havebeenadded.b)Anewclauseonreferenceshasbeenincorporated.c)Temperdesignationshavebeenmodified.d)AcomparisonofISand1S0designationshasbeengiveninAnnexAforinformationformeetingdomesticandexportrequirements.Characteristicsan
5、dtypicalusesofvariousalloyshavebeengiveninAnnexBforinformation.ThecompositionoftheCommitteeresponsiblefortheformulationofthisstandardisgiveninAnnexC.Forthepurposeofdecidingwhetheraparticularrequirementofthisstandardiscompliedwith,thefinalvalue,observedorcalculated,expressingtheres
6、ultofatestoranalysis,shallberoundedoffinaccordancewithIS2:1960‘Rulesforroundingoffnumericalvalues(revised’.Thenumberofsignificantplacesretainedintheroundedoffvalueshouldbethesameasthatofthespecifiedvalueinthisstandard.—————————-----—--’---”—”-1S737:200SIndianStaadardWROUGHTALUMINI
7、UMANDALUMINIUMALLOYSHEETANDSTRIPFORGENERALENGINEERINGPURPOSES—SPECIFICATION(FourthRevision)1SCOPE3.1HeatTreatmentBatch—AquantityofmaterialofonealloyofthesamedimensionandproducedinThisstandardcoverstherequirementsforwroughtthesameway,solutiontreatedandsubsequentlyaluminiumandalumin
8、iumalloysheetandstripforprecipita